import java.net.*;

import java.util.*;

public class Client_Main {

 public static void main(String[] args) {     

Scanner scanner=new Scanner(System.in);  

 Thread readData;

  ReceiveLetterForServer receiver=new ReceiveLetterForServer();  

 try{    readData =new Thread(receiver);  

  readData.start();   

 byte [] buffer=new byte[1];

   InetAddress address=InetAddress.getByName("127.0.0.1");

   DatagramPacket dataPack=new DatagramPacket(buffer,buffer.length,address,666);

   DatagramSocket postman=new DatagramSocket();   

 System.out.print("请输入给服务器发送到消息：");  

  while(scanner.hasNext()){     String mess=scanner.nextLine();    

 buffer =mess.getBytes();   

 if(mess.length()==0)      System.exit(0);     

buffer =mess.getBytes();  

   dataPack.setData(buffer);  

   postman.send(dataPack);    

 System.out.print("继续输入发给服务器的消息:");    }   }   

catch(Exception e){    System.out.println("服务器已断开"+e);   }

    }

}
